Single-player games like Zenith Expanse
Below are 8 single-player Steam games similar to Zenith Expanse, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Zenith Expanse page.
Ranked picks
- 1
Starship Colony
Single-player alternative to Zenith Expanse — playable solo, no multiplayer required. Shares Strategy and Indie with Zenith Expanse.
A deep starship colony sim. Build your starship, manage air, water, food, fuel, energy, temperature and psychology to keep your crew alive across vast distances. Closed-loop system in space. Mining, wiring, plumbing, in-ship factory, (alien?) radio signals & translation, diplomacy, combat, and more.
- 2
Generation Ship
Single-player alternative to Zenith Expanse — playable solo, no multiplayer required. Shares Strategy and Simulation with Zenith Expanse.
As the AI responsible for a Generation Ship, you are humanity's last hope. Build efficient raw material cycles and help your crew in a realistic real-time simulation to survive the challenges of space on their long journey to a new home!
- 3
Space Haven
Single-player alternative to Zenith Expanse — playable solo, no multiplayer required. Shares Strategy and Indie with Zenith Expanse.
Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.
- 4
Surviving Mars
Single-player alternative to Zenith Expanse — playable solo, no multiplayer required. Shares Strategy and Simulation with Zenith Expanse.
There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.
- 5
SpaceSlog
Single-player alternative to Zenith Expanse — playable solo, no multiplayer required. Shares Strategy and Indie with Zenith Expanse.
Build your spaceship, manage your crew, and explore the cosmos whilst trying to keep your crew alive and your ship fully functioning. This game features simulated ship systems and a lived in universe which creates a challenging, unique and unforgettable experience with every playthrough.
- 6
Stardeus
Single-player alternative to Zenith Expanse — playable solo, no multiplayer required. Shares Strategy and Indie with Zenith Expanse.
Stardeus is a deep colony sim set on a broken starship manned by drones and hibernating human survivors. As the AI, have your drones repair your ship, save your crew and travel the stars in this beautiful simulation.
- 7
SpaceCraft
Single-player alternative to Zenith Expanse — playable solo, no multiplayer required. Shares Indie and Simulation with Zenith Expanse.
The Universe is yours. SpaceCraft is an online space exploration and building game. Explore a vast galaxy of solar systems and planets, mine and craft resources, design and build ships, automate planetary bases and interplanetary logistics, trade and cooperate.
- 8
The Crust
Single-player alternative to Zenith Expanse — playable solo, no multiplayer required. Shares Strategy and Simulation with Zenith Expanse.
Automate a lunar base as you become the savior of humanity exploring the future on the moon. Mine, craft, research, and trade resources with Earth in this gripping narrative basebuilder.